small fixes for the parent patch
- format.usestore is a boolean option
- python wart: ("revlogv1") is a string, not a tuple
- only create a dummy changelog if we're using a store
- add a test
#!/bin/sh
hg init
mkfifo p
hg serve --stdio < p &
P=$!
(echo lock; echo addchangegroup; sleep 5) > p &
Q=$!
sleep 3
kill -HUP $P
wait
echo .hg/* .hg/store/*